The following is Engineer A’s understanding of LVS cluster, which one is correct? (Multiple choices)

The following is Engineer A’s understanding of LVS cluster, which one is correct? (Multiple choices)
A . LVS has three working modes: LVS-NAT (address translation), LVS-DR (direct routing), and LVS-TUN (tunnel)
B . Commonly used scheduling strategies for LVS include round-robin scheduling, weighted round-robin scheduling, minimum number of connections, fast response priority, etc.
C . LVS is a virtual server cluster that works on the seventh layer of the network system and uses IP load balancing technology and content-based request distribution technology on the fourth layer.
D . The LVS cluster is mainly composed of three parts: load scheduler, server pool (server pool/Realserver), and shared storage (shared storage)

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Answer: ABCD